Single-board microcontroller
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with an Atmel AT91SAM7X256 (ARM) microcontroller. A single-board microcontroller is a microcontroller built onto a single printed circuit board. This board provides all of the circuitry necessary for a useful control task: a microprocessor, I/O circuits, a clock generator, RAM, stored program memory and any necessary support ICs. The intention is that the board is immediately useful to an application developer, without requiring them to spend time and effort to develop controller hardware. As they are usually low-cost, and have an especially low capital cost for development, single-board microcontrollers have long been popular in education. They are also a popular means for developers to gain hands-on experience with a new processor family.
with an Atmel AT91SAM7X256 (ARM) microcontroller.]] A single-board microcontroller is a microcontroller built onto a single printed circuit board. This board provides all of the circuitry necessary for a useful control task: a microprocessor, I/O circuits, a clock generator, RAM, stored program memory and any necessary support ICs. The intention is that the board is immediately useful to an application developer, without requiring them to spend time and effort to develop controller hardware. As they are usually low-cost, and have an especially low capital cost for development, single-board microcontrollers have long been popular in education. They are also a popular means for developers to gain hands-on experience with a new processor family. ==Communications and user interfaces== Communications interfaces vary depending on the age of the microcontroller system. Early systems might implement a serial port to provide RS-232 or current loop. The serial port could be used by the application program or could be used, in conjunction with a monitor ROM, to transfer programs into the microcontroller memory. Current microcontrollers may support USB, wireless networks (Wi-Fi, Zigbee, or others), or provide an Ethernet connection. In addition, they may support a TCP/IP protocol stack. Some devices have firmware available to implement a Web server, allowing an application developer to rapidly build a Web-enabled instrument or system.
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